Home / 13,764.85-20,643.22-3,904.99

Finding the Fourth Proportional to 13,764.85, 20,643.22 and 3,904.99

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Solution

The fourth proportional to 13,764.85, 20,643.22 and 3,904.99 is: 5,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.85 : 20,643.22 = 3,904.99 : x
  2. Step 2: Convert to fraction form
    13,764.85/20,643.22 = 3,904.99/x
  3. Step 3: Cross multiply
    13,764.85x = 20,643.22 × 3,904.99
  4. Step 4: Simplify right side
    13,764.85x = 80,611,567.67
  5. Step 5: Solve for x
    x = 80,611,567.67/13,764.85
  6. Step 6: Final answer
    x = 5,856.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.